168443676618 has 32 divisors (see below), whose sum is σ = 398290469760. Its totient is φ = 46467220800.

The previous prime is 168443676593. The next prime is 168443676623. The reversal of 168443676618 is 816676344861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69146433 + ... + 69148868.

It is an arithmetic number, because the mean of its divisors is an integer number (12446577180).

Almost surely, 2^168443676618 is an apocalyptic number.

168443676618 is an abundant number, since it is smaller than the sum of its proper divisors (229846793142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168443676618 is a wasteful number, since it uses less digits than its factorization.

168443676618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138295342.

The product of its digits is 27869184, while the sum is 60.

The spelling of 168443676618 in words is "one hundred sixty-eight billion, four hundred forty-three million, six hundred seventy-six thousand, six hundred eighteen".